The green sacoglossan gastropod Oxynoe panamensis occurs in mangrove
swamps on the coasts of Baja Californi a, Mexico, apparently feeding exclusively
on the green siphonaceous alga Caulerpa sertularioides . When irritated, it
secretes an astringent, milky mucus, which contains a toxin lethal to fish. Continued
molestation may induce autotomy of the tail.